Starting-box.



M. TAIGMAN. v

STARTING BOX.

APPLICATION FILED JULY 1. 1914.

1,149,003. Patented Aug. 3, 1915.

3 SHEETS-SHEET l.

WITNESSES Mar/r E y/mm.

\ AITTORIVEYS M. TAIGMAN STARTING BOX. APPLICATION FILED JULY 7. 1914.

1,149,003. Patented Aug. 3, 1915.-

' a SHEZETS-SHEET 2.

WITNESSES l/VI/E/VTOR Max 7Z/ ma/z I ,ATTOR/VEYS M. TAIGMAN.

STARTING BOX.

APPLICATION FILED JULY 7. 1914.

3 SHEETS-SHEET 3.

mummwm u WITNESSES l/Vl/EIVTOR Mar E y/wan.

' ,4 TTOR/VEYS \tCILUMBjA If AAAAAAAAAAAAAAAAAAAAAAAAAA c.

Patented Aug. 3, 1915.

TAIGMAN, or nnwxonx, N. Y.

STARTING-BOX.

Specification of Letters Patent.

Patented Aug. 3, 1915.

Application filed July 7, 1914. Serial No. 249,449.

To all whom it may concern Be it known thatI, M X TAIGMAN, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in thecounty and State, of New York, have invented a new and Improved Start ing-Box, of which the following is a full', clear, and exact description. f

Among the principal objects which the present invention has in view are: to provide for discontinuing the supply of electric current when the retracting element of the switch lever becomes disabled; to provide for discontinuing the current supply when the back of the starting box is opened; to interrupt the current supply in the event the box cover becomes loosened; and to multiply the current-interrupting effects in the event of the retracting spring of the starting switch lever becoming? disabled.

Drawings.Figure 1 is a front elevation of a box oflthe character named, constructed and arranged in accordance with the present invention, showing the same in normal service relation'; Fig. 2 is a likeview showing I the parts as disposedsubsequent to the breaking of the retracting springsupporting the starting switch lever; Fig. 3 is an end view of the box as shown in -Figv 'l" of the drawings; Fig. tis an end view of the box as shown in Fig. 2 of-thedrawings, the connecting plugbeing removed; Fig. 5 is a top plan view of the box disposed as shown in Fig. 1 of the drawings,;one of the. suspending legs being removed to expose the working parts below Fig.6 is a front view of a fragmentvofabox havingwa currentsupply switch and. retainer therefor, constructed and arranged in accordance with. a modification of the invention; Fig. 7 is=an end view of the box,equipped with! a modified form of the current-supply switch constructed as shownin' Fig.6 ofthe drawings; Fig. 8 is anend view of thebox, showing a further modified form of current-cone trolling'switches therefor; Fig. 9 is a detail view,.0n an enlarged scale, showing'a corner fragment of the body of the box, a corner fragment of the back of the box, and a fragmentof the retainer for the currentsupply switch.

D cscriptz'0n.As set forth in an'applica- I tion for' patent upon improvements 'in'starting boxes, No. 830,675,-filed by me April 9,

1914; and in an application for patent upon is rocked from the posltion shown m-Fig. 1,

improvements in starting boxes, No; 837,198,

filed by meMay 8, 1.914, the box cover 15 is shown and described as having a spring metal jumper 115, which electrically connects the terminalllO anda corresponding terminal 114. These parts will be found in the application firstabove mentioned, having the numbers herein enumerated applied to the drawings in said application. These numbers are alsoapplied in they present ap plication. In the second of the above-mentioned applications, there is disclosed means embodyinga Menchen or other plug for introducing the current supply directly to the coil terminals of the resistanceunit. In the present invention, a Hubbel plug connector 16 is employed to receive terminal contacts:

17 when forced thereover. Interposed in advance of the terminal contacts 17 is a ring 18, which ring is formed at the end of a pendent arm 19 pivotally mounted in a lug thereof are held, whenin service position, adjacent the side of the box body 22 by a retaining arm 23, which is placed over a cam head 24. The ca-m head 24: and the arm 19 are pressed. outward by thenormal opera- ;tion ofa spring 25.

a The lower end of the arm 19 is guided in its action by; a pin 26, which passes through ,an enlargedperforation formed in the cross bar 27 of a yoke housing for, the spring 25.

a The yoke housing referred to is formedby bending the arm 19 to the shape seen best in Fig. 1 of the drawings.

I The retainer arm 23 is held in service positionbya retracting spring 28. ,The retracting spring 28 is operativelvconnected withthe starting switch lever 29 by a hook 30 formed on said switch lever. The 'oppo- "sitee'nd ofthe spring 28 is anchoredinan eyelet, formed in a tab31 of an arm32 extending horizontally from the rocking bar 33., The rocking bar 33,. retaining arm-23 Figs. 1 and 5 ofthedrawings.

.2awhen th'e parts are in the position shown inFig. 1. The exposed end of the lever 29 and 'armr 32 are preferably constructed integrally, In like manner, an elongated 1100p 34is provided to engage a dowel 35, by I which the cover 15 is retainedin closedp0- sition. This construction is best shown in The spring 28 issufficiently powerful to drawings. This movement is accompanied bv the ring 18 stripping the connector 16 from the contacts 17. In time with the above action, the cam'head 24 moves the arm 23 forward, and lifts the loop 34 from "engagement with the dowel 35." The immediate eflect'of this is to permit the jumper 115 to forcethe cover 15 outward to overbalance the same, causing it to rock on the spring latch 36; The jumper'115 is thereby removed from the terminal 110, as best shown in Fig. 4 of the drawings.

' The cover 15 is provided with side flanges 37, and with a top flange 38, which partially coverfthe opening to the box body 22 when said cover is in the position shown in Fig. 4. This construction avoids the liability of damage incident to the introduction of any foreign matter into the box during the period when the local circuit therein is broken in the manner described, and by the cover 15' assuming the position shown in Fig. 4 of the drawings. The cover- 15 is arrested in the position shown in Fig. 4,

by lugs 39 engaging pins 40, which project from the side of the body 22. w

' The box body 22 is permanently covered by a removable back 41. The back 41is' held in service position by a screwbolt 42 and a nut 43. The back 41 performs the further function of holding the bar"33 in "recesses 44 formed in the rear edge of the.

legs 21, as best seeniin Figs. 3 and 4 of the drawings. When the back 41 is released or removed, thepressure of the cam head 24 on one side, and the pull of thespring 28 on the arm 32 on the other side, cotiperates 'to dislodge the bar 33-from the recesses 44, thereby releasing the arm 19 to permit the stripping of the connector 16 and the suspensionof the current service for the starting' box. Provision is thus made j for the avoidance of accidents due to accidental or i careless dislodgment of the back-41 while electric current isbein'g furnished thereto. a

" and'7, a switch for the current supply, hav- Inthe modified form shown in Figs. 6

ing a button 45, is employed. The button 45 A is wedge-shaped, to furnishan inclined surface rest for the retaining arm 23, similar to that furnished by the cam head 24 in thepreferred form. The button and switch are contained within the conventional fcap 46. The operation in the modified form is; to all intents and purposes identical with that of the preferred form, with the "single exfrom the structure to the same extent as is the connector 16 in the preferred form.

In Fig. 8 of the drawings, a further modification is shown, wherein a short retaining arm 47 is employed in lieu of the longer retaining arm 23. The arm 47 is furnished at the lower end thereof with a knife blade 48, adapted to extend between the blades 49 and 50 of electric-supply terminals. When the retracting spring 28 is broken, a coil spring 51, which isanchored to the end of the blade 48-and to a pin 52 set out from the side of the body 22, draws said blade out of contact with the blades 49 and 50.

Claims:

1. A starting box comprising a switch lever; an electric current supply, embodying a removable connector; a retainer holding said connector inservice position; and a retractor for said lever operatively connected'with said retainer to'normally hold the same in service position.

2. Astarting box comprising a switch lever; an electric current supply, embodying a removable connector; a retainer holding said connector in service position; a retractor for said lever operatively connected with said retainer to normally hold the same in service position; and means for "disengaging said retainer and saidv connector.

3.. A starting box comprising a switch lever; an electric current supply, embodying a removable connector; a retainer holding said connector in service position; a retractor for said lever operatively connected with? said retainer to normally hold the same in'service position; and means for removing said connector from service position when said retractor fails to support said .lever. v

4. A starting box comprising a switch lever; an electric current'supply, embodying a removable connector; a retainer holding saidconnefctor in service position; a retrac- -tor for said lever operatively connected with a said retainer to normally hold the same in service "position; means for removing said connector'from service position when said retractor fails to support said lever; and an inclined seat for said retainer mounted on said connector- 5. A starting boxYcomprisinga containing box body; a switch lever; an electric current "supply embodying separable terminals disposedwithin said'box'body; a removable cover for said to: body, said cover forming-a support for one of said terminals; a retainer for said cover, holdingthe same in service position;'and aretractor opera- Gopies of this patent maybe obtained for portion; an electric current supply; a removable connector for sald supply; a retamer for sand connector, embodylng a rocking bar; and a removable back for said box body, adapted to form a bearing for said rocking bar.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

MAX TAIGMAN. Witnesses:

E. MUnDooK, Gr. H. EMsLIn.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

